NASA Neutral Buoyancy Lab, Texas
HMS Erebus and HMS Terror, Canada Arctic
Bonne Terre Mine, Missouri
USS Oriskany, Florida
Bikini Atoll, Micronesia
Empress of Ireland, Quebec
Antarctic
Galapagos, Ecuador
Cenotes, Mexico
Neptune Memorial Reef, Florida
Chuuk Lagoon
Scappa Flow, Scotland
Silfra...